Subtract 70/9 from 98/10
1st number: 9 8/10, 2nd number: 7 7/9
98/10 - 70/9 is 91/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
98/10 = 98 × 9/10 × 9 = 882/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
70/9 = 70 × 10/9 × 10 = 700/90 - Subtract the two like fractions:
882/90 - 700/90 = 882 - 700/90 = 182/90 - After reducing the fraction, the answer is 91/45
- In mixed form: 21/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-70/9 98/10-70/18 98/30-70/9 98/10-70/27 98/50-70/9 98/10-70/45 98/70-70/9 98/10-70/63